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Many different tools are available for counting particles. Choosing the optimal method depends on the application; specifically, whether you want to use the number of counted particles in equations or during postprocessing. The Particle Tracing interfaces in COMSOL Multiphysics feature three main particle counting options. While these approaches are versatile enough to compute quantities such as charge density and momentum flux, our focus here will be computing the number of particles on a set of domains or boundaries.

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When solving a chemical species transport problem, we are often dealing with cases that have a high Péclet number, where the ratio of the advection to diffusion is very high. We may also be dealing with such problems in structures that are periodic along the flow direction, and where the flow field itself is periodic. Using COMSOL Multiphysics, we can greatly reduce our computational requirements for such problems by using General Extrusion component couplings and the Previous Solution operator.

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The time has come. The latest version of COMSOL Multiphysics® — version 5.2 — is here. With this release, we bring you a number of upgrades to the Application Builder and COMSOL Server™ as well as various improvements to our other existing products. Here’s a quick summary of what you can expect in version 5.2.

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The COMSOL Conference 2015 Grenoble was a great opportunity for attendees to receive training, network, and learn more about the many applications of COMSOL Multiphysics. The papers and posters presented at this year’s conference covered a wide range of topics and industries, each demonstrating the power of simulation in advancing innovative research. Let’s learn a bit more about the Best Paper and Best Poster award winners.

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Today, we welcome Lars Fromme back to the blog — this time as a guest blogger from the FH Bielefeld University of Applied Sciences. Working with loud machines is an occupational safety issue in the modern world. To keep workers safe, we can design low-cost solutions to control the noise with the help of simulation. Researchers at the FH Bielefeld University of Applied Sciences set out to do just that by simulating acoustic transfer paths with COMSOL Multiphysics simulation software.

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Heat has a powerful effect on the operation and lifespan of electronic devices. Introducing components like heat sinks within these electronic systems helps maintain cooler temperatures and promotes healthy performance. As we demonstrate with our disk-stack heat sink example, simulation is a powerful tool for analyzing the efficiency of heat sink designs.

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For the first time, the COMSOL Conference made a stop in Pune for a two-day simulation event. Attendees came from all over India to present work in a wide range of applications. The conference saw over 100 user presentations in the form of posters and oral sessions. Let’s review the award-winning papers and posters from the COMSOL Conference 2015 Pune.

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Today, we introduce guest blogger Bernd Baumann, who shares insight into optimizing the performance of metal-halide lamps with simulation, with input from his colleague Joerg Schwieger. With the help of COMSOL Multiphysics, we investigated the impact of acoustic resonances and the related acoustic streaming field on the operation of metal-halide discharge lamps. To our surprise, we found that the lamps exhibit behaviors that are similar to a well-known mechanical system — the forced Duffing oscillator with a softening spring.

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Doctors can more effectively treat skin cancer when skin tumors are detected early. While visual examinations are typically used to identify such tumors, noninvasive tools like dielectric probes offer another approach. With COMSOL Multiphysics, we analyze the functionality and safety of a dielectric probe used for skin cancer diagnosis.

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Cricket is the second most popular sport in the world, but it’s also considered an art. This is seen in the technical abilities required by the batsman to protect his wicket and go on to score runs. It’s also due to the type of bowling used to get the batsman out, which depends on a myriad of physical factors. Here, we investigate one of these techniques — the art of swing bowling.

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Silicon chips have been the foundation of power electronics over the years. However, as more applications are using increasingly higher amounts of electrical power, silicon has begun to reach its limits. Wide band gap semiconductors offer an opportunity to surpass these confines, operating at high frequencies, voltages, and temperatures. Looking to optimize their development of wide band gap solutions, engineers at Wolfspeed utilized the power of the Application Builder within COMSOL Multiphysics.

Categories

When solving a chemical species transport problem, we are often dealing with cases that have a high Péclet number, where the ratio of the advection to diffusion is very high. We may also be dealing with such problems in structures that are periodic along the flow direction, and where the flow field itself is periodic. Using COMSOL Multiphysics, we can greatly reduce our computational requirements for such problems by using General Extrusion component couplings and the Previous Solution operator.

Categories

For the first time, the COMSOL Conference made a stop in Pune for a two-day simulation event. Attendees came from all over India to present work in a wide range of applications. The conference saw over 100 user presentations in the form of posters and oral sessions. Let’s review the award-winning papers and posters from the COMSOL Conference 2015 Pune.

Categories

The time has come. The latest version of COMSOL Multiphysics® — version 5.2 — is here. With this release, we bring you a number of upgrades to the Application Builder and COMSOL Server™ as well as various improvements to our other existing products. Here’s a quick summary of what you can expect in version 5.2.

Categories

Today, we introduce guest blogger Bernd Baumann, who shares insight into optimizing the performance of metal-halide lamps with simulation, with input from his colleague Joerg Schwieger. With the help of COMSOL Multiphysics, we investigated the impact of acoustic resonances and the related acoustic streaming field on the operation of metal-halide discharge lamps. To our surprise, we found that the lamps exhibit behaviors that are similar to a well-known mechanical system — the forced Duffing oscillator with a softening spring.

Categories

The COMSOL Conference 2015 Grenoble was a great opportunity for attendees to receive training, network, and learn more about the many applications of COMSOL Multiphysics. The papers and posters presented at this year’s conference covered a wide range of topics and industries, each demonstrating the power of simulation in advancing innovative research. Let’s learn a bit more about the Best Paper and Best Poster award winners.

Categories

Doctors can more effectively treat skin cancer when skin tumors are detected early. While visual examinations are typically used to identify such tumors, noninvasive tools like dielectric probes offer another approach. With COMSOL Multiphysics, we analyze the functionality and safety of a dielectric probe used for skin cancer diagnosis.

Categories

Today, we welcome Lars Fromme back to the blog — this time as a guest blogger from the FH Bielefeld University of Applied Sciences. Working with loud machines is an occupational safety issue in the modern world. To keep workers safe, we can design low-cost solutions to control the noise with the help of simulation. Researchers at the FH Bielefeld University of Applied Sciences set out to do just that by simulating acoustic transfer paths with COMSOL Multiphysics simulation software.

Categories

Cricket is the second most popular sport in the world, but it’s also considered an art. This is seen in the technical abilities required by the batsman to protect his wicket and go on to score runs. It’s also due to the type of bowling used to get the batsman out, which depends on a myriad of physical factors. Here, we investigate one of these techniques — the art of swing bowling.

Categories

Heat has a powerful effect on the operation and lifespan of electronic devices. Introducing components like heat sinks within these electronic systems helps maintain cooler temperatures and promotes healthy performance. As we demonstrate with our disk-stack heat sink example, simulation is a powerful tool for analyzing the efficiency of heat sink designs.

Categories

Silicon chips have been the foundation of power electronics over the years. However, as more applications are using increasingly higher amounts of electrical power, silicon has begun to reach its limits. Wide band gap semiconductors offer an opportunity to surpass these confines, operating at high frequencies, voltages, and temperatures. Looking to optimize their development of wide band gap solutions, engineers at Wolfspeed utilized the power of the Application Builder within COMSOL Multiphysics.